Python basics notes

What is the use of DOT in Python?

Usage of dots in python is necessary because dot notation tells python to look inside the space that is before the dot for code to execute. You can use dot notation to access the specific version of a certain function that is defined in a different class or a different module

example: dataframe.head()

Python2 v3

data frame basics

c

OS Module

Video watched: https://pythonprogramming.net/python-3-os-module/

We are talking about Python standard library

This module comes with the installation of python

"The main purpose of the OS module is to interact with your operating system. The primary use I find for it is to create folders, remove folders, move folders, and sometimes change the working directory. You can also access the names of files within a file path by doing listdir()."

os practice code

import os #import os

curDir = os.getcwd()#find out where we are/ urrent working directory

print(curDir) #output our current location

##can also reate diretory

os.mkdir('nnewDir') #this will make a new dir in your urrent location

import time #import time operation, just incase it happens too fast and we miss it

time.sleep(2) #sleep for 2 sec

os.rename('nnewDir', 'newDir2') #'original name', 'new changed name'

#remove directory

time.sleep(2)

#os.rmdir('newDir2')

help(os) #get help

notes: UUID is universally unique identify number